Euro header

Hey guys, I'm sure that there is a thread about euro headers already but I can't seem to find it. If anyone can please direct me to it or help me out. I'm wondering if the Euro headers will give me the same kind of gains as the Agency Power headers even while running the Euro cats or 200 cell cats in Section one. Would there be a difference at all? ( OEM with cats or Euro with cats in section 1)





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